Is there anything I can do to help my orphaned puppy poop? His mother was hit by a bus 2 days after he was born, I brought him to my home 3 days ago.. He has only pooped once since being here, he's eating lots of formula, not on mush or solids yet,. he's passed the point already where he would need stimulation to go to the bathroom, his tummy is full, he's got a big belly now, but starts shaking and whimpers when he's trying to poop.. What can I do for my new baby?